# Question

Following are the data on percentage of investments in energy securities and tax efficiency from Exercise 14.16. Use α = 0.05.

Presuming that the assumptions for regression inferences are met, decide at the specified significance level whether the data provide sufficient evidence to conclude that the predictor variable is useful for predicting the response variable.

Presuming that the assumptions for regression inferences are met, decide at the specified significance level whether the data provide sufficient evidence to conclude that the predictor variable is useful for predicting the response variable.

## Answer to relevant Questions

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